diff --git a/Source/Core/Core/IOS/USB/Common.h b/Source/Core/Core/IOS/USB/Common.h
index 58a164adc1..8a6c4edf06 100644
--- a/Source/Core/Core/IOS/USB/Common.h
+++ b/Source/Core/Core/IOS/USB/Common.h
@@ -127,14 +127,14 @@ struct CtrlMessage : TransferCommand
 
 struct BulkMessage : TransferCommand
 {
-  u16 length = 0;
+  u32 length = 0;
   u8 endpoint = 0;
   using TransferCommand::TransferCommand;
 };
 
 struct IntrMessage : TransferCommand
 {
-  u16 length = 0;
+  u32 length = 0;
   u8 endpoint = 0;
   using TransferCommand::TransferCommand;
 };
@@ -143,7 +143,7 @@ struct IsoMessage : TransferCommand
 {
   u32 packet_sizes_addr = 0;
   std::vector<u16> packet_sizes;
-  u16 length = 0;
+  u32 length = 0;
   u8 num_packets = 0;
   u8 endpoint = 0;
   using TransferCommand::TransferCommand;
diff --git a/Source/Core/Core/IOS/USB/USBV4.cpp b/Source/Core/Core/IOS/USB/USBV4.cpp
index c31848fe1c..1aae6c6a7b 100644
--- a/Source/Core/Core/IOS/USB/USBV4.cpp
+++ b/Source/Core/Core/IOS/USB/USBV4.cpp
@@ -87,7 +87,7 @@ V4IntrMessage::V4IntrMessage(Kernel& ios, const IOCtlRequest& ioctl) : IntrMessa
 {
   HIDRequest hid_request;
   Memory::CopyFromEmu(&hid_request, ioctl.buffer_in, sizeof(hid_request));
-  length = static_cast<u16>(Common::swap32(hid_request.interrupt.length));
+  length = Common::swap32(hid_request.interrupt.length);
   endpoint = static_cast<u8>(Common::swap32(hid_request.interrupt.endpoint));
   data_address = Common::swap32(hid_request.data_addr);
 }
diff --git a/Source/Core/Core/IOS/USB/USBV5.cpp b/Source/Core/Core/IOS/USB/USBV5.cpp
index 09eb3d6718..0da9448a65 100644
--- a/Source/Core/Core/IOS/USB/USBV5.cpp
+++ b/Source/Core/Core/IOS/USB/USBV5.cpp
@@ -31,14 +31,14 @@ V5CtrlMessage::V5CtrlMessage(Kernel& ios, const IOCtlVRequest& ioctlv)
 V5BulkMessage::V5BulkMessage(Kernel& ios, const IOCtlVRequest& ioctlv)
     : BulkMessage(ios, ioctlv, ioctlv.GetVector(1)->address)
 {
-  length = static_cast<u16>(ioctlv.GetVector(1)->size);
+  length = ioctlv.GetVector(1)->size;
   endpoint = Memory::Read_U8(ioctlv.in_vectors[0].address + 18);
 }
 
 V5IntrMessage::V5IntrMessage(Kernel& ios, const IOCtlVRequest& ioctlv)
     : IntrMessage(ios, ioctlv, ioctlv.GetVector(1)->address)
 {
-  length = static_cast<u16>(ioctlv.GetVector(1)->size);
+  length = ioctlv.GetVector(1)->size;
   endpoint = Memory::Read_U8(ioctlv.in_vectors[0].address + 14);
 }
 
@@ -50,7 +50,7 @@ V5IsoMessage::V5IsoMessage(Kernel& ios, const IOCtlVRequest& ioctlv)
   packet_sizes_addr = ioctlv.GetVector(1)->address;
   for (size_t i = 0; i < num_packets; ++i)
     packet_sizes.push_back(Memory::Read_U16(static_cast<u32>(packet_sizes_addr + i * sizeof(u16))));
-  length = static_cast<u16>(ioctlv.GetVector(2)->size);
+  length = ioctlv.GetVector(2)->size;
 }
 }  // namespace USB